WO2000026553A1 - Raccord elastomere ameliore a moyeux a surface cylindrique - Google Patents

Raccord elastomere ameliore a moyeux a surface cylindrique Download PDF

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Publication number
WO2000026553A1
WO2000026553A1 PCT/US1999/017483 US9917483W WO0026553A1 WO 2000026553 A1 WO2000026553 A1 WO 2000026553A1 US 9917483 W US9917483 W US 9917483W WO 0026553 A1 WO0026553 A1 WO 0026553A1
Authority
WO
WIPO (PCT)
Prior art keywords
axially
shoe
radially
hub
elastomeric
Prior art date
Application number
PCT/US1999/017483
Other languages
English (en)
Inventor
Alan Goebel
James Braun
Original Assignee
Rexnord Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rexnord Corporation filed Critical Rexnord Corporation
Priority to JP2000579907A priority Critical patent/JP2002530594A/ja
Priority to BR9914908-7A priority patent/BR9914908A/pt
Priority to DE69934429T priority patent/DE69934429T2/de
Priority to EP99940848A priority patent/EP1129301B1/fr
Priority to MXPA01004269A priority patent/MXPA01004269A/es
Publication of WO2000026553A1 publication Critical patent/WO2000026553A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/72—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts
    • F16D3/74—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts the intermediate member or members being made of rubber or other rubber-like flexible material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/72—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts
    • F16D3/74—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts the intermediate member or members being made of rubber or other rubber-like flexible material
    • F16D2003/745—Tyre type coupling, i.e. bellows with only one fold

Definitions

  • the invention relates to flexible shaft couplings, and more particularly, to elastomeric couplings for transmitting torque between two shafts approximately aligned on a shaft axis, i.e., to elastomeric couplings joining a pair of axially spaced shafts.
  • elastomeric couplings have comprised a composite member extending arcuately about an axis generally coinciding with the shaft axis and including an elastomeric center element having integrally connected first and second axially spaced portions which extend radially and in opposite axial directions, together with first and second shoes which are respectively fixed to the center element and which extend in axially opposite directions, and first and second hubs which are respectively fixed within the shoes .
  • the first and second portions of the center element included semi-cylindrical inner surfaces to which the outer surfaces of the axially extending inner parts of the first and second shoes were fixed or bonded.
  • the outer surfaces of the hubs respectively included radially outwardly extending collars or shoulders which were raised above the remainder of the outer surfaces and which respectively engaged the inner surfaces of the outer parts of the first and second shoes.
  • Such projections are shown in U.S. Application Serial No. 09/120,948, which was filed July 22, 1998, which is entitled Tearing Configuration for Flexible Element of Elastomeric Coupling (Attorneys' Docket No.
  • the invention provides an elastomeric coupling for transmitting torque between two shafts approximately aligned on a shaft axis, which coupling comprises a pair of semi-circular composite members each including an elastomeric center element and a shoe having an axially inner portion fixed to the extending portion of the elastomeric center element, and an axially outer portion extending from the axially inner portion and including an inner surface.
  • a hub is adapted to surround one of the shaft ends, and the hub includes an outer cylindrical surface having a circumference and a length. The cylindrical outer surface of the hub provides a support surface for the complementary inner surface of the axially outer portion of the shoe.
  • the axially inner portion of the shoe is encapsulated in and fixed in the material of the elastomeric element and the axially outer portion is offset radially inwardly with respect to the axially inner portion.
  • Figure 1 is a diametral sectional view of an elastomeric coupling which embodies various of the features of the invention.
  • Figure 2 is an elevational view of one of the components included in the elastomeric coupling shown in Figure 1.
  • Figure 3 is a partial sectional view taken along line 3-3 in Figure 2.
  • an elastomeric coupling 11 for transmitting torque between two shafts 13 and 15 approximately aligned on a shaft axis 17, which coupling 11 is generally annular and comprises a pair of semi-circular composite members 21 surrounding an axis 23 generally coinciding with the shaft axis 17.
  • Each composite member 21 includes an elastomeric center element 25 having integrally connected first and second axially spaced portions 27 and 29 which extend radially and in opposite axial directions, together with first and second shoes 31 and 33 which are respectively fixed to the first and second axially spaced portions 27 and 29 of the center element 25 and which extend in axially opposite directions.
  • the coupling also includes first and second hubs or barrels 35 and 37 which are respectively fixed within the first and second shoes 31 and 33, and which surround and are fixed on the shafts 13 and 15 so as to afford driving of one of the shafts 13 and 15 by the other of the shafts 13 and 15.
  • the center element 25 is generally semi-annular and can be fabricated of any suitable elastomeric material, such as urethane.
  • the axially spaced portions 27 and 29 are generally identically constructed and each comprises a radially inner part 41 having an inner cylindrical surface 43, and a radially outer part 45 integrally connected to the inner part 41.
  • the first and second portions 27 and 29 of the center element 25 are integrally connected by a bridge portion 51 which is located in axially spaced relation to the axis 23 and which extends from the radially outer margins of the radially outer parts 45 of the first and second axially spaced portions 27 and 29 of the center element 25.
  • the first and second shoes 31 and 33 are generally identically constructed, are generally semi-annular, and can be fabricated of any suitable generally rigid material, such as a metal.
  • the first and second shoes 31 and 33 respectively have axially inner portions 61 with a first axial length 63.
  • the axially inner portions 61 of the first and second shoes 31 and 33 respectively are molded into the axially spaced first and seconds portions 27 and 29 of the center element 25 and are bonded at surface 49 to the outer parts 45 and preferably both of the radially inner and outer parts 41 and 45 of the first and seconds portions 27 and 29 of the center element 25.
  • first and second shoes 31 and 33 are sandwiched between, or integrally housed in, the radially inner and outer parts 41 and 45 of the first and seconds portions 27 and 29 of the center element 25.
  • the first and second shoes 31 and 33 also respectively include axially outer portions 65 respectively extending from the axially inner portions 61 and having second axial lengths 67 greater than the axial lengths 63 of the inner portions 61.
  • the axially outer portions 65 extend in radially inwardly offset relation from the associated axially inner portions 61 and include respective cylindrical inner surfaces 69 coinciding with the cylindrical inner surfaces 43 of the first and second portions 27 and 29 of the center element 25.
  • the axially outer portions 65 respectively include a plurality of arcuately spaced radially extending holes 71 which are located in spaced relation from the axially outer end of the associated one of the outer portions 65. While other constructions can be employed, in the disclosed construction, there are three such equi-angularly spaced holes 71.
  • the first and second hubs or barrels 35 and 37 are generally identically constructed, are generally annular, and can be fabricated of any suitable generally rigid material, such as a metal.
  • the first and second hubs or barrels 35 and 37 respectively include first axially located outer ends 81, second axially located inner ends 83 located in axially spaced relation to the first or outer ends 81, and inner axial bores or surfaces 85 adapted to be respectively connected to, or engaged with, the first and second shafts 13 and 15.
  • the first and second hubs 35 and 37 respectively include outer cylindrical surfaces 87 which are respectively engaged by the inner surfaces 69 of the first and second shoes 31 and 33.
  • the outer cylindrical surfaces 87 of the hubs 35 and 37 respectively have a circumference and a length, and the outer cylindrical surfaces 87 of the hubs 35 and 37 and the inner surfaces 69 of the shoes 31 and 33 are engaged substantially throughout the surfaces 87 of the hubs 35 and 37.
  • first and second hubs or barrels 35 and 37 also respectively include a plurality of arcuately spaced and radially extending apertures 91 which correspond in number to the holes 71 of the shoes 31 and 33, which are located in axially spaced relation to the outer and inner axially spaced ends 81 and 83, and in closer relation to the outer ends 81 than to the inner ends 83, and in respective registering relation to the holes 71 of the axially outer portions 65 of the first and second shoes 31 and 33.
  • Means are provided for fixing the shoes 31 and 33 to the hubs 35 and 37 for common rotary movement. While other constructions can be employed, in the disclosed construction, such means comprises the holes 71, the apertures 91, and, for each of the registered holes 71 and apertures 91, a suitable bolt or screw 95 which passes through the associated hole 71 and is threaded into the associated aperture 91.
  • any suitable means can be provided for respectively connecting the hubs or barrels 37 and 39 to the shafts 13 and 15 for common rotary movement.
  • the hubs 35 and 37 can include axial bores 85 of greater diameter, thereby permitting use on larger shafts.
  • the disclosed hubs 35 and 37 are easier to align, are cheaper to manufacture, and provide larger surface areas in contact with the associated shoes 31 and 33 to reduce bending stresses on the associated shoes 31 and 33.
  • hubs or barrels 35 and 37 can be used with both closely spaced and more widely spaced coupling arrangements.
  • the elastomeric material of the center element 25 encapsulates the inner portions 61 of the shoes 31 and 33 without adversely affecting attachment and function of the hubs or barrels 35 and 37.
  • the presence of the elastomeric material at the inner cylindrical surfaces 43 of the axially spaced portions 27 and 29 of the center element 25 has an improved appearance.
  • Use the cylindrical hubs 35 and 37, in conjunction with the formed shoes 31 and 33 advantageously provides additional contact area between the cylindrical hubs 33 and 35 and the metal shoes 31 and 33. This additional contact area reduces bending stresses by providing greater support, as compared to the prior use of a non-cylindrical hub and straight shoe design. In the past, the shoe would tend to pivot on the narrow contact area of the non uniformed cylindrical hub.
  • cylindrical hub 35 and 37 with uniform outer cylindrical surfaces also advantageously provides additional material that allows for larger bore capacities compared with the prior non-uniform cylindrical type hub. In many cases, this advantage will provide the opportunity for a smaller coupling selection.
  • the cylindrical hubs 35 and 37 also advantageously provides a uniform surface for easy alignment and reduces the machining required in manufacturing.
  • the disclosed construction of the shoes 31 and 33 also advantageously acts as a rib or flange which increases the stiffness of the shoe. This increased strength is more resistant to bending under stresses when the coupling is in operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Springs (AREA)
  • Pulleys (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

L'invention concerne un raccord élastomère (11) permettant de transmettre un couple entre deux arbres (13, 15) alignés approximativement sur un axe (17) de l'arbre. Ce raccord (11) comprend un élément composite (21) s'étendant courbé autour d'un axe (23) et comportant un élément central élastomère (25) ayant une partie s'étendant axialement et radialement (27) présentant une surface intérieure (41) ; un support (31) présentant une partie intérieure (61) axiale fixée à la partie (27) de l'élément central élastomère (25) ; et un moyeu (35) adapté pour être connecté à l'arbre (13) et comprenant une surface extérieure (87) présentant une circonférence et une longueur et en contact avec la surface intérieure (69) du support (31) sur la circonférence et la longueur complètes de la surface extérieure (87) du moyeu (35).
PCT/US1999/017483 1998-10-29 1999-08-02 Raccord elastomere ameliore a moyeux a surface cylindrique WO2000026553A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2000579907A JP2002530594A (ja) 1998-10-29 1999-08-02 円柱形表面ハブを具備した改良された弾性継手
BR9914908-7A BR9914908A (pt) 1998-10-29 1999-08-02 Acoplamento elastomérico para transmitir torque entre dois eixos aproximadamente alinhados sobre um eixo central do eixo
DE69934429T DE69934429T2 (de) 1998-10-29 1999-08-02 Verbesserte elastomerbefestigung mit zylindrischer oberflächennabe
EP99940848A EP1129301B1 (fr) 1998-10-29 1999-08-02 Raccord elastomere ameliore a moyeux a surface cylindrique
MXPA01004269A MXPA01004269A (es) 1998-10-29 1999-08-02 Acoplamiento elastomerico mejorado, con bujes de superficie cilindrica.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/182,147 US6196926B1 (en) 1998-10-29 1998-10-29 Elastomer coupling having cylindrical surface hubs
US09/182,147 1998-10-29

Publications (1)

Publication Number Publication Date
WO2000026553A1 true WO2000026553A1 (fr) 2000-05-11

Family

ID=22667254

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/017483 WO2000026553A1 (fr) 1998-10-29 1999-08-02 Raccord elastomere ameliore a moyeux a surface cylindrique

Country Status (9)

Country Link
US (1) US6196926B1 (fr)
EP (1) EP1129301B1 (fr)
JP (1) JP2002530594A (fr)
CN (1) CN1173120C (fr)
AT (1) ATE348272T1 (fr)
BR (1) BR9914908A (fr)
DE (1) DE69934429T2 (fr)
MX (1) MXPA01004269A (fr)
WO (1) WO2000026553A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001025648A1 (fr) * 1999-10-01 2001-04-12 Rexnord Corporation Accouplement d'arbres d'engagement a plusieurs connexions
CN112283259A (zh) * 2020-11-20 2021-01-29 杭州职业技术学院 一种组合式柔性联轴器

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060009297A1 (en) * 2004-07-08 2006-01-12 Hubiak William R Flexible coupling having a center with opposing re-entrant folds
WO2005019671A1 (fr) 2003-07-29 2005-03-03 Rexnord Corporation Accouplement flexible presentant un centre avec des plis rentrants opposes
JP2006174690A (ja) * 2004-11-18 2006-06-29 Smc Corp アクチュエータ制御システム
US7390265B2 (en) * 2005-10-21 2008-06-24 Tb Wood's Enterprises, Inc. Flexible coupling device
CN102230501A (zh) * 2011-07-25 2011-11-02 李正峰 一种改进的套筒联轴器
CN102297209A (zh) * 2011-09-22 2011-12-28 丹东克隆集团有限责任公司 高弹联轴器
US8758149B1 (en) 2012-12-06 2014-06-24 Baldor Electric Company Elastomeric coupling having clamp ring with flanges providing torsional stiffness characteristics
CN103527614A (zh) * 2013-10-25 2014-01-22 中电电机股份有限公司 大型同步电机用三段轴的联接结构
US9249837B2 (en) 2013-12-20 2016-02-02 Baldor Electric Company Winged elastomeric coupling with minimized separation forces between elastomer and clamp ring

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068665A (en) * 1961-03-09 1962-12-18 Dodge Mfg Corp Flexible coupling
US3524332A (en) * 1968-09-06 1970-08-18 Rex Chainbelt Inc Elastomer coupling
US3621674A (en) * 1969-09-26 1971-11-23 Ford Motor Co Reinforced bellows universal joint
US4634400A (en) 1978-05-01 1987-01-06 Rexnord Inc. End stress relief configuration for flexible element of elastomeric coupling
US5564982A (en) * 1994-05-04 1996-10-15 Gipson; Alvin W. Flexible coupling with quick-disconnect coupling hubs

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1107315A (en) 1912-08-14 1914-08-18 Anciens Etablissements Panhard Flexible joint for coupling two transmission-shafts.
US1501187A (en) 1921-09-03 1924-07-15 Charles L Rayfield Flexible coupling
US2971356A (en) 1956-05-15 1961-02-14 Mobay Chemical Corp Flexible shaft connections
FR1260083A (fr) * 1960-03-22 1961-05-05 Chalectro Soc Accouplement moteur-pompe
US3178906A (en) 1962-08-10 1965-04-20 Lawrence M Ricketts Flexible shaft coupling
AT301963B (de) 1969-06-11 1972-09-25 Stromag Maschf Elastische Wellenkupplung
US3623339A (en) * 1969-11-28 1971-11-30 Ford Motor Co Bellows flexible joint
FR2653505B1 (fr) 1989-10-20 1994-12-23 Framatome Sa Dispositif d'accouplement pour arbres tournants.
BR9202179A (pt) 1991-06-21 1993-02-02 Dana Corp Aparelho para unir um tubo de junta de velocidade costante a uma junta de velocidade constante
US5611732A (en) 1995-08-07 1997-03-18 Tb Wood's Incorporated Flexible coupling with end stress relief structure
US5910049A (en) * 1997-09-25 1999-06-08 Reliance Electric Industrial Company Elastomeric coupling system
US6080065A (en) 1998-07-22 2000-06-27 Rexnord Corporation Tearing configuration for flexible element of elastomeric coupling

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068665A (en) * 1961-03-09 1962-12-18 Dodge Mfg Corp Flexible coupling
US3524332A (en) * 1968-09-06 1970-08-18 Rex Chainbelt Inc Elastomer coupling
US3621674A (en) * 1969-09-26 1971-11-23 Ford Motor Co Reinforced bellows universal joint
US4634400A (en) 1978-05-01 1987-01-06 Rexnord Inc. End stress relief configuration for flexible element of elastomeric coupling
US5564982A (en) * 1994-05-04 1996-10-15 Gipson; Alvin W. Flexible coupling with quick-disconnect coupling hubs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001025648A1 (fr) * 1999-10-01 2001-04-12 Rexnord Corporation Accouplement d'arbres d'engagement a plusieurs connexions
CN112283259A (zh) * 2020-11-20 2021-01-29 杭州职业技术学院 一种组合式柔性联轴器

Also Published As

Publication number Publication date
CN1173120C (zh) 2004-10-27
ATE348272T1 (de) 2007-01-15
MXPA01004269A (es) 2002-06-04
EP1129301A1 (fr) 2001-09-05
DE69934429T2 (de) 2007-09-27
EP1129301B1 (fr) 2006-12-13
EP1129301A4 (fr) 2005-07-20
DE69934429D1 (de) 2007-01-25
JP2002530594A (ja) 2002-09-17
BR9914908A (pt) 2001-08-07
US6196926B1 (en) 2001-03-06
CN1325481A (zh) 2001-12-05

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